my recent reads..

LEAP#361 128x128 TFT LCDs

I dug out a 1.44 inch 128*128 SPI Color TFT LCD Module from my parts drawer as a possible display for a project I’m working on. First .. put it to the test and try a couple of Arduino libraries. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#360 TL431 Shunt Regulator

The TL431 Precision Programmable Reference is a cheap and easily adjustable shunt regulator. The standard grade offers a reasonable 2% reference voltage tolerance.

In this mini-circuit I am testing the common application as a shunt regulator/reference voltage e.g. for use in power supplies. As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#359 HS-088 Effects Chip

Just another audio effects chip. this time a simple dorbell effect. The effect is very similar to - and not any more pleasant! - than the kind of effect you can get with common two-tone 555 circuits.

As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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LEAP#358 MC34063 Boost Converter Kit

The MC34063 is a monolithic DC-to-DC switching controller that can be adapted to step-down, step-up and inverting applications with a minimum of external components.

This module is a very cheap kit designed by ICStation ICSK034A. It has a fixed converiguration to boost 5V in to 12V out.

As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub hero_image


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